femme fatale vs heartbreaker

femme fatale

noun
  • An attractive and seductive but ultimately dangerous woman. 

heartbreaker

noun
  • Someone, usually attractive, who flirts with or otherwise enamours a person, but does not reciprocate their love. 

  • A match which ends in defeat for a promising player or team. 

  • Something that causes sorrow, grief or extreme disappointment. 

  • An independent role-playing game that attempts to fix various perceived design flaws in an established RPG, but whose few innovations will not reach a wide audience due to its lack of marketability. 

How often have the words femme fatale and heartbreaker occurred in a corpus of books? (source: Google Ngram Viewer )